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Search: Posts Made By: Ken Roach
Forum: LIVE PLC Questions And Answers Yesterday, 12:30 PM
Replies: 2
Views: 92
Posted By Ken Roach
Thanks for that link, Mickey. I will expound. ...

Thanks for that link, Mickey. I will expound.

The 1784-U2DHP was built many years after RSLinx 2.52 was released, so there is no U2DHP specific driver in RSLinx 2.52. Installing the...
Forum: LIVE PLC Questions And Answers March 22nd, 2019, 05:30 PM
Replies: 12
Views: 1,054
Posted By Ken Roach
The Kinetix 300 and the 1769-L30ER are not...

The Kinetix 300 and the 1769-L30ER are not appropriate for learning the ControlLogix motion control instruction set because they do not support ControlLogix motion instructions.

If you have a...
Forum: LIVE PLC Questions And Answers March 22nd, 2019, 05:13 PM
Replies: 12
Views: 1,054
Posted By Ken Roach
You cannot do networked gearing, or camming, or...

You cannot do networked gearing, or camming, or coordinated motion between axes with a Kinetix 300 motion controller. It's a simple point-to-point indexer.

If you have only one axis of motion to...
Forum: LIVE PLC Questions And Answers March 22nd, 2019, 05:07 PM
Replies: 12
Views: 1,054
Posted By Ken Roach
You can use all the features of the Kinetix 300,...

You can use all the features of the Kinetix 300, including its network-controlled indexing functions.

But the Kinetix 300 and the 1769-L30ER (not -ERM) do not support CIP Motion and the Motion...
Forum: LIVE PLC Questions And Answers March 22nd, 2019, 04:19 PM
Replies: 3
Views: 198
Posted By Ken Roach
The 1768-L43 was actually one of the least...

The 1768-L43 was actually one of the least popular CompactLogix controllers; it has that mix of the high-performance 1768 series data bus on the left, and the 1769 I/O bus on the right.

But it...
Forum: LIVE PLC Questions And Answers March 22nd, 2019, 03:08 PM
Replies: 3
Views: 198
Posted By Ken Roach
Welcome to the PLCTalk forum community ! The...

Welcome to the PLCTalk forum community !

The firmware numbers you describe are from "CompactLogix" controllers, not the older-architecture "MicroLogix".

In general, you can load older firmware...
Forum: LIVE PLC Questions And Answers March 22nd, 2019, 10:59 AM
Replies: 10
Views: 308
Posted By Ken Roach
I think so. Modbus RTU protocol to read 24...

I think so.

Modbus RTU protocol to read 24 Holding Registers would take just 8 bytes for the poll command and 56 bytes for the response.

At 19200 bits/second and 10-bit data frames (8/N/1), 64...
Forum: LIVE PLC Questions And Answers March 21st, 2019, 02:31 PM
Replies: 8
Views: 349
Posted By Ken Roach
What exactly are your "motion functions", other...

What exactly are your "motion functions", other than learning the speed of the pipe ? Do you have to stop the pipe at a particular location, or perform work on it while it's moving down the...
Forum: LIVE PLC Questions And Answers March 20th, 2019, 06:25 PM
Replies: 26
Views: 744
Posted By Ken Roach
I built six machines with Micro 830 controllers...

I built six machines with Micro 830 controllers instead of MicroLogix 1100 controllers about four years ago.

Having done the original programming in the early versions of CCW, and having...
Forum: LIVE PLC Questions And Answers March 20th, 2019, 06:19 PM
Replies: 10
Views: 278
Posted By Ken Roach
When you create the *.MER file, FactoryTalk View...

When you create the *.MER file, FactoryTalk View Studio gives you the opportunity to create (most) older firmware versions instead of the current one. I think it's a pull-down menu.

Since it's a...
Forum: LIVE PLC Questions And Answers March 20th, 2019, 05:55 PM
Replies: 10
Views: 278
Posted By Ken Roach
A search for that error message in the RA...

A search for that error message in the RA Knowledgebase returns Answer ID # 1075214 (https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1075214) (Access Level: TechConnect)>

The...
Forum: LIVE PLC Questions And Answers March 20th, 2019, 02:12 PM
Replies: 14
Views: 358
Posted By Ken Roach
PanelView Standard User Manual:...

PanelView Standard User Manual: https://literature.rockwellautomation.com/idc/groups/literature/documents/um/2711-um014_-en-p.pdf

Chapter 3, Page 102 shows the Printer Setup page. When the Port...
Forum: LIVE PLC Questions And Answers March 20th, 2019, 12:25 PM
Replies: 14
Views: 358
Posted By Ken Roach
PanelView Standard terminals that use DH-485...

PanelView Standard terminals that use DH-485 protocol and have a second RS-232 port can only use that port for Serial Printing.

On all other models (including this 2711-K10C8), the second RS-232...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 09:28 PM
Replies: 14
Views: 358
Posted By Ken Roach
Welcome to the PLCTalk forum community ! ...

Welcome to the PLCTalk forum community !

What is the exact part number of your PanelView terminal ? Some of them have RS-232 ports that are for serial printing only, and some have RS-232 ports...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 09:15 PM
Replies: 5
Views: 259
Posted By Ken Roach
I have. But because we make extensive use of...

I have.

But because we make extensive use of NumPy and SciPy, we cannot make do with a Java-based Python that does not allow us to use those libraries.

Nor can we deal with a heavy server based...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 04:29 PM
Replies: 5
Views: 259
Posted By Ken Roach
Welcome to the PLCTalk Forum community ! Is...

Welcome to the PLCTalk Forum community !

Is this Wonderware InTouch, or Wonderware "Machine Edition" or "InTouch Edge HMI", which are brand labels for Indusoft Web Studio ?


Your "Batch_Date2"...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 04:09 PM
Replies: 7
Views: 340
Posted By Ken Roach
All CompactLogix controllers that have network...

All CompactLogix controllers that have network ports support produced/consumed tags. Take another look at your configurations; a lot of folks don't know how to select a Producer controller that's...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 04:05 PM
Replies: 5
Views: 214
Posted By Ken Roach
Also: the RA Knowledgebase and the open source...

Also: the RA Knowledgebase and the open source project wiki both say that the 'x' command does not work, and I see that it's the last command in your script.

I'm not sure what the effect is; ...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 03:53 PM
Replies: 5
Views: 214
Posted By Ken Roach
That's what I'm trying to get through my head. ...

That's what I'm trying to get through my head. Is there an error message that occurs ?

It doesn't make sense that it would require a file to be present to be over-written. The opposite would...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 02:09 PM
Replies: 5
Views: 214
Posted By Ken Roach
Welcome to the PLCTalk forum community ! ...

Welcome to the PLCTalk forum community !

Exposition: Most folks who use FTP on the PV+ are familiar with the FTP Server service, which allows an external device to read and write the PV+...
Forum: LIVE PLC Questions And Answers March 19th, 2019, 12:18 PM
Replies: 5
Views: 212
Posted By Ken Roach
It holds up the volatile RAM (the User Program)...

It holds up the volatile RAM (the User Program) and runs the Real Time Clock.

On the 1756-L6x controllers, they will lose the program immediately if powered down with a low/dead/missing battery. ...
Forum: LIVE PLC Questions And Answers March 15th, 2019, 07:37 PM
Replies: 9
Views: 321
Posted By Ken Roach
You could explicitly calculate a Julian Date (the...

You could explicitly calculate a Julian Date (the Day of the Year), then calculate the number of seconds equivalent to it. Then you could compare the last-copied value to the powerup value.

The...
Forum: LIVE PLC Questions And Answers March 15th, 2019, 06:20 PM
Replies: 9
Views: 321
Posted By Ken Roach
What make and model of PLC ? Some have a...

What make and model of PLC ?

Some have a Real-Time Clock and a power-down routine that will allow them to store the time of the power failure.
Forum: LIVE PLC Questions And Answers March 15th, 2019, 02:56 PM
Replies: 3
Views: 312
Posted By Ken Roach
Explain exactly what you mean by "send". ...

Explain exactly what you mean by "send".

Some old platforms of PLCs required you to set up a Send instruction in one controller and a Receive instruction in another, as a matching pair. ...
Forum: LIVE PLC Questions And Answers March 15th, 2019, 02:11 PM
Replies: 12
Views: 1,949
Posted By Ken Roach
Really good question ! In my experience,...

Really good question ! In my experience, Alt-ASCII codes require a keyboard with a separate 10-key pad; it doesn't work on the top-row number keys.

You press and hold the ALT key, then type...
Showing results 1 to 25 of 500

 
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